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diff --git a/doc/html/hello-example.html b/doc/html/hello-example.html new file mode 100644 index 000000000..416f8e638 --- /dev/null +++ b/doc/html/hello-example.html @@ -0,0 +1,236 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> +<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/hello/hello.doc:5 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>Hello, World</title> +<style type="text/css"><!-- +fn { margin-left: 1cm; text-indent: -1cm; } +a:link { color: #004faf; text-decoration: none } +a:visited { color: #672967; text-decoration: none } +body { background: #ffffff; color: black; } +--></style> +</head> +<body> + +<table border="0" cellpadding="0" cellspacing="0" width="100%"> +<tr bgcolor="#E5E5E5"> +<td valign=center> + <a href="index.html"> +<font color="#004faf">Home</font></a> + | <a href="classes.html"> +<font color="#004faf">All Classes</font></a> + | <a href="mainclasses.html"> +<font color="#004faf">Main Classes</font></a> + | <a href="annotated.html"> +<font color="#004faf">Annotated</font></a> + | <a href="groups.html"> +<font color="#004faf">Grouped Classes</font></a> + | <a href="functions.html"> +<font color="#004faf">Functions</font></a> +</td> +<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Hello, World</h1> + + +<p> +This example brings up the words "Hello, World" moving up and down, +and in different colors. +<p> <hr> +<p> Header file: +<p> <pre>/**************************************************************************** +** $Id: qt/hello.h 3.3.8 edited Jan 11 14:37 $ +** +** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for TQt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#ifndef HELLO_H +#define HELLO_H + +#include <<a href="qwidget-h.html">qwidget.h</a>> + + +class Hello : public <a href="qwidget.html">TQWidget</a> +{ + <a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a> +public: + Hello( const char *text, TQWidget *parent=0, const char *name=0 ); +signals: + void clicked(); +protected: + void mouseReleaseEvent( <a href="qmouseevent.html">TQMouseEvent</a> * ); + void paintEvent( <a href="qpaintevent.html">TQPaintEvent</a> * ); +private slots: + void animate(); +private: + <a href="qstring.html">TQString</a> t; + int b; +}; + +#endif +</pre> + +<p> <hr> +<p> Implementation: +<p> <pre>/**************************************************************************** +** $Id: qt/hello.cpp 3.3.8 edited Jan 11 14:37 $ +** +** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for TQt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#include "hello.h" +#include <<a href="qpushbutton-h.html">qpushbutton.h</a>> +#include <<a href="qtimer-h.html">qtimer.h</a>> +#include <<a href="qpainter-h.html">qpainter.h</a>> +#include <<a href="qpixmap-h.html">qpixmap.h</a>> + + +/* + Constructs a Hello widget. Starts a 40 ms animation timer. +*/ + +<a name="f473"></a>Hello::Hello( const char *text, TQWidget *parent, const char *name ) + : <a href="qwidget.html">TQWidget</a>(parent,name), t(text), b(0) +{ + <a href="qtimer.html">TQTimer</a> *timer = new <a href="qtimer.html">TQTimer</a>(this); +<a name="x1640"></a> <a href="qobject.html#connect">connect</a>( timer, SIGNAL(<a href="qtimer.html#timeout">timeout</a>()), SLOT(animate()) ); +<a name="x1639"></a> timer-><a href="qtimer.html#start">start</a>( 40 ); + + <a href="qwidget.html#resize">resize</a>( 260, 130 ); +} + + +/* + This private slot is called each time the timer fires. +*/ + +void <a name="f474"></a>Hello::animate() +{ + b = (b + 1) & 15; + <a href="qwidget.html#repaint">repaint</a>( FALSE ); +} + + +/* + Handles mouse button release events for the Hello widget. + + We emit the clicked() signal when the mouse is released inside + the widget. +*/ + +<a name="x1641"></a>void Hello::<a href="qwidget.html#mouseReleaseEvent">mouseReleaseEvent</a>( <a href="qmouseevent.html">TQMouseEvent</a> *e ) +{ + if ( <a href="qwidget.html#rect">rect</a>().contains( e-><a href="qmouseevent.html#pos">pos</a>() ) ) + emit clicked(); +} + + +/* + Handles paint events for the Hello widget. + + Flicker-free update. The text is first drawn in the pixmap and the + pixmap is then blt'ed to the screen. +*/ + +void Hello::<a href="qwidget.html#paintEvent">paintEvent</a>( <a href="qpaintevent.html">TQPaintEvent</a> * ) +{ + static int sin_tbl[16] = { + 0, 38, 71, 92, 100, 92, 71, 38, 0, -38, -71, -92, -100, -92, -71, -38}; + + if ( t.isEmpty() ) + return; + + // 1: Compute some sizes, positions etc. + <a href="qfontmetrics.html">TQFontMetrics</a> fm = <a href="qwidget.html#fontMetrics">fontMetrics</a>(); +<a name="x1631"></a> int w = fm.<a href="qfontmetrics.html#width">width</a>(t) + 20; +<a name="x1630"></a> int h = fm.<a href="qfontmetrics.html#height">height</a>() * 2; + int pmx = <a href="qwidget.html#width">width</a>()/2 - w/2; + int pmy = <a href="qwidget.html#height">height</a>()/2 - h/2; + + // 2: Create the pixmap and fill it with the widget's background + <a href="qpixmap.html">TQPixmap</a> pm( w, h ); +<a name="x1638"></a> pm.<a href="qpixmap.html#fill">fill</a>( this, pmx, pmy ); + + // 3: Paint the pixmap. Cool wave effect + <a href="qpainter.html">TQPainter</a> p; + int x = 10; +<a name="x1629"></a> int y = h/2 + fm.<a href="qfontmetrics.html#descent">descent</a>(); + int i = 0; +<a name="x1633"></a> p.<a href="qpainter.html#begin">begin</a>( &pm ); +<a name="x1636"></a> p.<a href="qpainter.html#setFont">setFont</a>( <a href="qwidget.html#font">font</a>() ); + while ( !t[i].isNull() ) { + int i16 = (b+i) & 15; + p.<a href="qpainter.html#setPen">setPen</a>( TQColor((15-i16)*16,255,255,TQColor::Hsv) ); + p.<a href="qpainter.html#drawText">drawText</a>( x, y-sin_tbl[i16]*h/800, t.mid(i,1), 1 ); + x += fm.<a href="qfontmetrics.html#width">width</a>( t[i] ); + i++; + } +<a name="x1635"></a> p.<a href="qpainter.html#end">end</a>(); + + // 4: Copy the pixmap to the Hello widget + <a href="qimage.html#bitBlt">bitBlt</a>( this, pmx, pmy, &pm ); +} +</pre> + +<p> <hr> +<p> Main: +<p> <pre>/**************************************************************************** +** $Id: qt/main.cpp 3.3.8 edited Jan 11 14:37 $ +** +** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for TQt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#include "hello.h" +#include <<a href="qapplication-h.html">qapplication.h</a>> + + +/* + The program starts here. It parses the command line and builds a message + string to be displayed by the Hello widget. +*/ + +int main( int argc, char **argv ) +{ + <a href="qapplication.html">TQApplication</a> a(argc,argv); + <a href="qstring.html">TQString</a> s; + for ( int i=1; i<argc; i++ ) { + s += argv[i]; + if ( i<argc-1 ) + s += " "; + } + if ( s.<a href="qstring.html#isEmpty">isEmpty</a>() ) + s = "Hello, World"; + Hello h( s ); +#ifndef QT_NO_WIDGET_TOPEXTRA // for TQt/Embedded minimal build + h.<a href="qwidget.html#setCaption">setCaption</a>( "TQt says hello" ); +#endif + TQObject::<a href="qobject.html#connect">connect</a>( &h, SIGNAL(clicked()), &a, SLOT(<a href="qapplication.html#tquit">tquit</a>()) ); +<a name="x1650"></a> h.<a href="qwidget.html#setFont">setFont</a>( TQFont("times",32,TQFont::Bold) ); // default font +<a name="x1648"></a> h.<a href="qwidget.html#setBackgroundColor">setBackgroundColor</a>( TQt::white ); // default bg color + a.<a href="qapplication.html#setMainWidget">setMainWidget</a>( &h ); + h.<a href="qwidget.html#show">show</a>(); + return a.<a href="qapplication.html#exec">exec</a>(); +} +</pre> + +<p>See also <a href="examples.html">Examples</a>. + +<!-- eof --> +<p><address><hr><div align=center> +<table width=100% cellspacing=0 border=0><tr> +<td>Copyright © 2007 +<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> +<td align=right><div align=right>TQt 3.3.8</div> +</table></div></address></body> +</html> |